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Could a late diabetes test prevent unnecessary C-Sections?

NCT ID NCT07708129

Disease control Sponsor: Shauna F. Williams, MD Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 16, 2026 · Last updated Jul 17, 2026 · Updated 1 time

Summary

This trial investigates whether re-testing pregnant people for gestational diabetes in the third trimester can lower the rate of cesarean deliveries when an ultrasound shows the baby is measuring large. Participants who previously tested negative for diabetes are randomly assigned to either receive a repeat glucose test and continuous glucose monitoring with nutrition counseling, or no additional testing. The goal is to see if detecting and managing late-onset diabetes improves birth outcomes.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
glucose tolerance test and continuous glucose monitor
What this could lead to
If successful, this approach could reduce the need for cesarean deliveries in pregnancies where the baby is measuring large.
What could go wrong
This is a small, early-stage trial, and the results may not apply to all pregnancies. The intervention may not significantly change delivery outcomes.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 144 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

May 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 50 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Gestational age 30 weeks 0 days and 36 weeks 6 days * Ultrasound with estimated fetal weight or abdominal circumference greater than 90th%ile * Age 18-50 years old. Exclusion Criteria: * Previously diagnosed gestational diabetes or pre-gestational diabetes * Multiple gestation * Previous cesarean delivery * Any condition precluding vaginal delivery (placenta previa/placenta accreta spectrum disorders, vasa previa, prior uterine surgery with contraindication to vaginal delivery) * Suboptimal dating (based on US \>22wk gestation) * Contraindication to glucose tolerance test

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Large for gestational age (LGA) Pregnancy

How to take part

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  1. The official record

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